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America/Nuuk time zone

10:55AMUTC−2

UTC−2UTC−2+3 h vs New York (you)

About America/Nuuk

America/Nuuk is the IANA time zone for most of Greenland in Greenland. It currently keeps UTC−2 in winter and UTC−1 in summer.

Its principal location is Nuuk at 64.18° N, 51.73° W.

Rule for future years (POSIX TZ string)

<-02>2<-01>,M3.5.0/-1,M10.5.0/0

The standard time is called “-02” (a numeric abbreviation) and is UTC−2. POSIX writes the offset with the opposite sign (west of Greenwich is positive), which is why the string says "2". Daylight saving time is called “-01” (a numeric abbreviation) and is UTC−1. It starts on the last Sunday of March at -1:00 and ends on the last Sunday of October at 00:00, local time. Software that has no full tzdata copy, such as many embedded devices, can use this string directly as the TZ environment variable.

Upcoming transitions

Computed from tzdata 2026f; local times are read on the clock just before each change.

History of America/Nuuk since 1970

The record starts with local mean time (UTC−3:27), which ended on July 27, 1916. The first daylight saving time in the record is in 1980.

YearsClocksAbbreviations
1970–1979UTC−3 all year—
1980–2022UTC−3 in winter, UTC−2 in summer—
2023UTC−3 until March 25, then UTC−2—
2024 onwardUTC−2 in winter, UTC−1 in summer—

Before 1970

1 offset change before 1970 in the record:

Changes of the winter (standard) offset: Saturday, March 25, 2023, UTC−3 → UTC−2.

tzdata commits to accuracy from 1970 for every zone (zone1970.tab); earlier entries are historical research and may be incomplete.

Aliases and zones with the same clock

These older or country-specific IDs are links to America/Nuuk in tzdata. Their pages redirect here: America/Godthab.

Other zones that keep exactly the same time under the current rules (but have a different history): America/Scoresbysund.

Places on America/Nuuk

Convert Nuuk time

Tip: Alt+↑/↓ steps the time by 15 minutes (Shift: one hour). The link keeps the date, time and direction.

Using America/Nuuk in code

Every major platform reads the same IANA ID. Store instants in UTC and convert with the ID at display time; never store a fixed offset for a place that has daylight saving time.

// JavaScript
new Date().toLocaleString('en-US', { timeZone: 'America/Nuuk' })

# Python 3.9+
from zoneinfo import ZoneInfo
from datetime import datetime
datetime.now(ZoneInfo('America/Nuuk'))

// Java
java.time.ZonedDateTime.now(java.time.ZoneId.of("America/Nuuk"))

// Go
loc, _ := time.LoadLocation("America/Nuuk")
time.Now().In(loc)

-- PostgreSQL
SELECT now() AT TIME ZONE 'America/Nuuk';

# Shell
TZ='America/Nuuk' date

Platforms ship their own copy of tzdata and update it on their own schedule. After a rule change, outputs can differ until the platform updates; this page uses tzdata 2026f.

Questions

What is the UTC offset of America/Nuuk?
UTC−2 in winter and UTC−1 in summer (daylight saving time from the last Sunday of March at -1:00 AM to the last Sunday of October at 12:00 AM).
Does America/Nuuk observe daylight saving time?
Yes: clocks move one hour forward on the last Sunday of March at -1:00 AM and back on the last Sunday of October at 12:00 AM.
Is America/Godthab the same as America/Nuuk?
Yes. America/Godthab is a link (alias) to America/Nuuk in tzdata and gives the same time since 1970. It remains a valid ID.
Which countries use America/Nuuk?
Greenland, according to zone1970.tab in tzdata.

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